70739161986 has 16 divisors (see below), whose sum is σ = 141680155968. Its totient is φ = 23546082000.

The previous prime is 70739161943. The next prime is 70739162003. The reversal of 70739161986 is 68916193707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8405110 + ... + 8413521.

It is an arithmetic number, because the mean of its divisors is an integer number (8855009748).

Almost surely, 2^70739161986 is an apocalyptic number.

70739161986 is an abundant number, since it is smaller than the sum of its proper divisors (70940993982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70739161986 is a wasteful number, since it uses less digits than its factorization.

70739161986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16819337.

The product of its (nonzero) digits is 3429216, while the sum is 57.

The spelling of 70739161986 in words is "seventy billion, seven hundred thirty-nine million, one hundred sixty-one thousand, nine hundred eighty-six".